Indeed, nearly one in 10 people who did not switch their college major are now making more than $75,000 a year, compared to just 2.5 percent of people who did switch majors. And 65 percent of those who did not switch their major are in upper or middle management or other professional jobs, compared to 35 percent who did.

The reasons for this aren’t entirely clear, but it could be that people who are undecided in college remain that way in their careers and end up hopping around to many different fields.

Of course, this doesn’t have to be the case. Switch to one of the three highest-paying fields — STEM (science, tech, engineering and math,) health and business — and your earnings will likely average $65,000 or more as you get more experience, according to data from Georgetown University.

It can also help, if you do change your major, to make sure you still graduate on time. After all, paying down more student debt eats into your take home pay. And one study found that students who graduate in four years, as compared to six years, spend 40 percent less.

But perhaps most importantly, if you do want to switch, listen to what you think you want to do. The CollegeStats survey showed that nearly 42 percent of college grads who say they listened to themselves — versus parents, guidance counselors or others — when choosing their major say they are happy with how much they made post-graduation. Meanwhile, just about 10 percent of those who listened to their parents say the same.